Meet your lungs they help your body take in oxygen! Join colorful characters as they learn how the respiratory system helps to provide cells with the oxygen they need to survive. Readers will learn about respiration, carbon dioxide, diaphragm, lungs, inhalation and exhalation, and exercise. The graphicnovel format helps to hook students and communicate biological concepts in full color. For more content on the wonders of the body, check out other titles in the Building Blocks of the Human Body series!